Description:Brighten up any playroom with these unique transparent building bricks. Use Prism Bricks to build dimensional treasures that radiate with color. Prism Bricks are so special because unlike other ordinary opaque building blocks, they are transparent which allows light to pass through them and create a beautiful mixture of glowing colors. Try placing them near a sunny window or on any of the Prism Light Centers and see them burst into a rainbow of brilliant color! Prism Bricks are also 100% compatible with DUPLO.